Food can become contaminated by bacteria from other foods. This type of cross-contamination is especially dangerous if raw foods come into contact with cooked foods.Here are some examples of food-to-food cross-contamination: 1  In a refrigerator, meat drippings from raw meat stored on a top shelf might drip onto cooked vegetables placed on lower shelf.ood can become contaminated by bacteria from other foods. This type of cross-contamination is especially dangerous if raw foods come into contact with cooked foods.
Best Answer: Putting batteries in the freezer or refrigerator doesn't necessarily prolong their life. Alkaline batteries stored at room temperature self discharge at a rate of less than two percent per year. So normally refrigerating or freezing them will only help maintain their charge by a tiny amount.
As they get older the charge rate decreases but you should not have a freezing problem with a battery that is charged. More of a problem in cold weather is the batteries inefficiency, at minus 30 70% of the capacity is lost due to the cold.Keep the battery warm if you live in a really cold area.2 deg fah +++ (That's the freezing-point of pure water.) Adding antifreeze lowers the freezing-point, to a temperature depending on the make and dilution-the values for a s â¦ pecific anti-freeze will be on its container label.